电流互感器选型手册
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电流互感器选型手册
文本预览
目 录
一、LDZC-10/24/35型高精度电流互感器 01
...........................................................................................................................................................
二、LDZK-10/24/35型开启式电流互感器 15
...........................................................................................................................................................
三、LZCT-10/24型套管式电流互感器 29
...........................................................................................................................................................
四、LMDZ-10型母排式电流互感器 41
...........................................................................................................................................................
五、LXZK 型零序电流互感器 46
...........................................................................................................................................................
六、LXZ 型零序电流互感器 54
...........................................................................................................................................................
七、LSY-10/24型三相一体组合式电流互感器 62
...........................................................................................................................................................
八、LDZC135-10/24型双电缆电流互感器 70
...........................................................................................................................................................
九、 LZKW-10户外开启式电流互感器 74
...........................................................................................................................................................
十、 W型电流互感器 76
...........................................................................................................................................................一、LDZC-10/24/35高精度电流互感器
LDZC-10/24/35 high-precision current transformer
概 述 General description
LDZC高精度电流互感器适用于交流电力系统10kV， LDZC high precision current transformer is suitable for current
measurement and protection of distribution equipments in 10kV,
24kV和35kV以下电缆线路供用电设备的电流、电能测量和
24kV and 35kV AC power system. It is widely used in compact fully
保护。该电流互感器具有体积小、重量轻、便于安装等特
insulated ring main unit such as ABB-SafeRing/SafePlus,RM6/
点，已在ABB-SafeRing/SafePlus、施耐德RM6/SM6、伊 SM6, SVS, GA/GE in Germany , FB in France and SS in
Korea, and so on because of its small volume, light weight, and
顿SVS、德国GA/GE、法国FB、韩国SS等系列紧凑型全绝
convenient installment. It is very convenient that the transformer
缘环网开关柜中广泛应用。
can be directly installed at connected output and input cables.
该型电流互感器选用新型导磁材料作为测量绕组的铁 New magnetic material is taken to be the core of the current
transformer, which has high magnetic permeability, low saturation
芯，其高磁导率、较低的饱和磁感应强度和优良的稳定
induction density and good stability. Therefore, the measuring
性，保证了较高的测量准确度和较低的仪表保安系数，优
accuracy is higher and the instrument security factor is lower.
质进口硅钢片经先进工艺加工后作为保护绕组的铁芯，保 Since the high quality silicon steel sheet metal processed by
advanced technology is taken to be the core of the protection
证了较高的准确限值系数。
windings, the accuracy limit factor will be higher.
环型铁芯和二次绕组采用优质环氧树脂真空浇注在可
The circular ring core and secondary windings are vacuum
阻燃的塑料壳体内，防潮湿，性能稳定，无需维护。该型 poured by high quality epoxies resin in the fire retardant plastic
casing, which has the characteristic of moisture proof, stable
电流互感器体积小、重量轻，占用空间小，固定在环网开
performance and dispensing with maintenance. The cable can
关柜的电缆室内，安装时只需将电缆从内孔穿过，简便快
cross the current transformer through its internal poles quickly and
捷，和谐美观。 uniformly.
The current transformers can be divided several kinds according
依据电流变比、准确级和额定负载的不同，该系列电流
to the various current ratio, accuracy and rated loads. The specific
互感器分为以下几种类型，具体参数详见各型号对应的参
parameters are showed in the corresponding parameter tables of
数表。 every type.
命名规则 Nomenclature
系列命名 Product Series 产品代码 Product Code
L D Z C — X X LC XX □ XXX XXX XXX XXX
电缆电压等级 cable voltage level 高度 height
内径 inside diameter
穿心式 through-core 外径 outside diameter
长度 length
浇注 poured C 测量绕组 measuring winding
P 保护绕组 protection winding
D 复合绕组 composite winding
电缆 cable
电压等级（kV） voltage level
电流互感器 current transformer 产品型式 production type
01技术参数 Technical data
额定频率 Rated frequency： 50Hz or 60Hz
额定二次电流 Rated secondary current： 5A or 1A
额定短时热电流 Rated short-time thermal current： 40kA，1s
额定连续热电流 Rated continuous thermal current： 120%In
工频耐压 Continuous power-frequency voltage 3kV , 1min
仪表保安系数 Instrument security factor： FS≤10
适用条件 Suit condition
环境温度 Ambient temperature： -40℃-+55℃
日平均温度 Daily mean temperature： ≤40℃
海拔高度 Altitude： ≤3000m
污秽等级 Pollution class： III
产品尺寸 Product Size
型号 产品代码 规格尺寸(mm) 一次电流（A） 重量（kg） 适用电缆
Type Product code Size Primary current Weight APP.Cable
LC10□100045040 φ100×φ45×40 75-600 0.85 400
LC10□100045080 φ100×φ45×80 40-600 2.4 400
LC10□135045070 φ135×φ45×70 20-600 4.2 400
LC10□135045140 φ135×φ45×140 20-600 9 400
LDZC-10
LC10□120100038100 120×100×100×φ38 20-400 2.4 150
LC10□120100038120 120×100×120×φ38 20-400 3 150
LC10□120100050100 120×100×100×φ50 50-1000 1.5 500
LC10□120100050120 120×100×120×φ50 50-1000 3.4 500
LC24□120100062120 120×100×120×φ62 50-1000 2.1 400
LDZC-24
LC24□130116062080 130×116×80×φ62 50-600 3 400
一、LDZC-10/24/35型高精度电流互感器 01
...........................................................................................................................................................
二、LDZK-10/24/35型开启式电流互感器 15
...........................................................................................................................................................
三、LZCT-10/24型套管式电流互感器 29
...........................................................................................................................................................
四、LMDZ-10型母排式电流互感器 41
...........................................................................................................................................................
五、LXZK 型零序电流互感器 46
...........................................................................................................................................................
六、LXZ 型零序电流互感器 54
...........................................................................................................................................................
七、LSY-10/24型三相一体组合式电流互感器 62
...........................................................................................................................................................
八、LDZC135-10/24型双电缆电流互感器 70
...........................................................................................................................................................
九、 LZKW-10户外开启式电流互感器 74
...........................................................................................................................................................
十、 W型电流互感器 76
...........................................................................................................................................................一、LDZC-10/24/35高精度电流互感器
LDZC-10/24/35 high-precision current transformer
概 述 General description
LDZC高精度电流互感器适用于交流电力系统10kV， LDZC high precision current transformer is suitable for current
measurement and protection of distribution equipments in 10kV,
24kV和35kV以下电缆线路供用电设备的电流、电能测量和
24kV and 35kV AC power system. It is widely used in compact fully
保护。该电流互感器具有体积小、重量轻、便于安装等特
insulated ring main unit such as ABB-SafeRing/SafePlus,RM6/
点，已在ABB-SafeRing/SafePlus、施耐德RM6/SM6、伊 SM6, SVS, GA/GE in Germany , FB in France and SS in
Korea, and so on because of its small volume, light weight, and
顿SVS、德国GA/GE、法国FB、韩国SS等系列紧凑型全绝
convenient installment. It is very convenient that the transformer
缘环网开关柜中广泛应用。
can be directly installed at connected output and input cables.
该型电流互感器选用新型导磁材料作为测量绕组的铁 New magnetic material is taken to be the core of the current
transformer, which has high magnetic permeability, low saturation
芯，其高磁导率、较低的饱和磁感应强度和优良的稳定
induction density and good stability. Therefore, the measuring
性，保证了较高的测量准确度和较低的仪表保安系数，优
accuracy is higher and the instrument security factor is lower.
质进口硅钢片经先进工艺加工后作为保护绕组的铁芯，保 Since the high quality silicon steel sheet metal processed by
advanced technology is taken to be the core of the protection
证了较高的准确限值系数。
windings, the accuracy limit factor will be higher.
环型铁芯和二次绕组采用优质环氧树脂真空浇注在可
The circular ring core and secondary windings are vacuum
阻燃的塑料壳体内，防潮湿，性能稳定，无需维护。该型 poured by high quality epoxies resin in the fire retardant plastic
casing, which has the characteristic of moisture proof, stable
电流互感器体积小、重量轻，占用空间小，固定在环网开
performance and dispensing with maintenance. The cable can
关柜的电缆室内，安装时只需将电缆从内孔穿过，简便快
cross the current transformer through its internal poles quickly and
捷，和谐美观。 uniformly.
The current transformers can be divided several kinds according
依据电流变比、准确级和额定负载的不同，该系列电流
to the various current ratio, accuracy and rated loads. The specific
互感器分为以下几种类型，具体参数详见各型号对应的参
parameters are showed in the corresponding parameter tables of
数表。 every type.
命名规则 Nomenclature
系列命名 Product Series 产品代码 Product Code
L D Z C — X X LC XX □ XXX XXX XXX XXX
电缆电压等级 cable voltage level 高度 height
内径 inside diameter
穿心式 through-core 外径 outside diameter
长度 length
浇注 poured C 测量绕组 measuring winding
P 保护绕组 protection winding
D 复合绕组 composite winding
电缆 cable
电压等级（kV） voltage level
电流互感器 current transformer 产品型式 production type
01技术参数 Technical data
额定频率 Rated frequency： 50Hz or 60Hz
额定二次电流 Rated secondary current： 5A or 1A
额定短时热电流 Rated short-time thermal current： 40kA，1s
额定连续热电流 Rated continuous thermal current： 120%In
工频耐压 Continuous power-frequency voltage 3kV , 1min
仪表保安系数 Instrument security factor： FS≤10
适用条件 Suit condition
环境温度 Ambient temperature： -40℃-+55℃
日平均温度 Daily mean temperature： ≤40℃
海拔高度 Altitude： ≤3000m
污秽等级 Pollution class： III
产品尺寸 Product Size
型号 产品代码 规格尺寸(mm) 一次电流（A） 重量（kg） 适用电缆
Type Product code Size Primary current Weight APP.Cable
LC10□100045040 φ100×φ45×40 75-600 0.85 400
LC10□100045080 φ100×φ45×80 40-600 2.4 400
LC10□135045070 φ135×φ45×70 20-600 4.2 400
LC10□135045140 φ135×φ45×140 20-600 9 400
LDZC-10
LC10□120100038100 120×100×100×φ38 20-400 2.4 150
LC10□120100038120 120×100×120×φ38 20-400 3 150
LC10□120100050100 120×100×100×φ50 50-1000 1.5 500
LC10□120100050120 120×100×120×φ50 50-1000 3.4 500
LC24□120100062120 120×100×120×φ62 50-1000 2.1 400
LDZC-24
LC24□130116062080 130×116×80×φ62 50-600 3 400
AIGC尊敬的用户，电流互感器选型手册是一种详细的指南，它帮助电气工程师和技术人员在设计和应用电力系统时选择合适的电流互感器。电流互感器是一种电气设备，主要用于电力系统的测量、保护和监控，将高电压或大电流转换为低电压或小电流，以便于安全地进行测量和控制。
在选择电流互感器时，需要考虑以下几个关键因素：
1. **额定电流**：确保互感器能够承受预期的工作电流，并提供足够的准确度。
2. **准确度等级**：不同的应用可能需要不同级别的准确度，如0.1级、0.5级、5P等，用于保证测量结果的精确性。
3. **二次电流**：选择合适的二次绕组电流，以匹配测量仪表或保护设备的输入要求。
4. **绝缘等级**：根据工作环境和电压等级，选择适当的绝缘等级以保证安全性。
5. **安装方式**：如穿心式、嵌入式、封闭母线式等，根据实际安装条件来决定。
6. **防护等级**：IP防护等级，防止灰尘和水分的影响。
7. **频率响应**：对于高频交流电，可能需要考虑互感器的频率特性。
为了正确选用电流互感器，建议参考产品规格表、技术数据手册以及相关的工程规范，同时考虑项目的具体需求和预算。如果您对某个特定参数有疑问或者需要更深入的指导，请随时告诉我，我会尽力帮助您。
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